CN112935890A

CN112935890A - Numerical control milling machine capable of automatically clamping and fixing by using electrorheological fluid

Info

Publication number: CN112935890A
Application number: CN202110204698.9A
Authority: CN
Inventors: 吴建和; 段青松; 熊晨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-11

Abstract

The invention relates to the technical field of numerical control milling machines, and discloses a numerical control milling machine capable of automatically clamping and fixing by utilizing electrorheological fluid. This utilize automatic fixed numerically controlled fraise machine of centre gripping of electrorheological fluid, through the interact of electro-magnet and permanent magnet, drive clamping part and overcome spring one and move with the spring action of spring three to carrying out the centre gripping to adding the raw materials, rethread electric pole mutually supports with the inside electrorheological fluid of liquid chamber, and when the centre gripping was accomplished, the electrode post circular telegram made the electrorheological fluid become the solid, thereby restriction clamping part's removal has strengthened the centre gripping stability of product, has prevented that the raw materials from appearing not hard up the condition when adding man-hour.

Description

Numerical control milling machine capable of automatically clamping and fixing by using electrorheological fluid

Technical Field

The invention relates to the technical field of numerical control milling machines, in particular to a numerical control milling machine which utilizes electrorheological fluid to automatically clamp and fix.

Background

The numerically controlled fraise machine is an automatic processing equipment that develops on general milling machine's basis, and processing technology between them is the same basically, and the structure is also similar a bit, however in numerically controlled fraise machine's use, needs the manual work to carry out the centre gripping to the processing raw materials, is unfavorable for automated production, and can appear the clamping part because of the unstable condition of even becoming flexible of centre gripping that external force vibrations or mechanical clearance produced at the in-process of raw materials processing, is unfavorable for user's use.

In numerically controlled fraise machine's the use, the workman prevents the raw materials at the clamping part manually, and change the clamping-force between clamping part and raw materials through rotatory elasticity wheel, the assemble duration is long, be unfavorable for promoting production speed, simultaneously in the course of working of raw materials, because the vibrations of effort and mechanical motion itself production between raw materials and milling cutter, can lead to the increase of clamping part mechanical clearance, and then the unstable condition of centre gripping can appear and take place, lead to the raw materials not hard up, the quality of product has been reduced, user's user demand can not be satisfied.

Therefore, we propose a numerical control milling machine using electrorheological fluid to automatically clamp and fix to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the numerically controlled milling machine which utilizes electrorheological fluid to automatically clamp and fix, has the advantages of automatically clamping raw materials and enhancing the clamping stability, and solves the problems that the common numerically controlled milling machine cannot automatically clamp and is unstable in clamping.

(II) technical scheme

In order to realize the purposes of automatically clamping the raw materials and enhancing the clamping stability, the invention provides the following technical scheme: a numerical control milling machine utilizing electrorheological fluid to automatically clamp and fix comprises a rotating part, wherein clamping grooves which are uniformly distributed are formed in the rotating part, a clamping part is movably connected in the clamping groove, the top of the clamping part is fixedly connected with two symmetrical springs I, a permanent magnet is fixedly connected in the clamping part, a control groove is formed in the inner side of the clamping part, a spring II is fixedly connected in the inner side of the control groove, a control block is fixedly connected in the outer side of the spring II, an electric contact block is fixedly arranged in the control groove, liquid cavities are respectively formed in two sides of the clamping groove, a telescopic column is fixedly connected in each liquid cavity, a spring III is fixedly connected in each liquid cavity, an electrode column is fixedly connected in each liquid cavity, an electromagnet is fixedly connected in the outer side of the clamping groove, a placing groove is formed in the rotating part, a starting block is movably, and a spring IV is fixedly connected to the inner side of the rotary contact block.

Preferably, the rotating part includes casing and motor, and the casing is metal material, and the thickness of rotating part is less than the length of holder, drives the rotatory mill plane function that realizes the product of rotating part through the motor, makes the raw materials place inside the standing groove to expose and mill the plane end, the centre gripping and the processing of the product of being convenient for and raw materials.

Preferably, the clamping part is metal material, and the surface of clamping part is smooth, and the both sides of clamping part all are provided with the locking block, and the locking block cup joints in the inside in liquid chamber, and the locking block is inside to be seted up porosely, and the diameter in hole equals the diameter of flexible post, through the electrorheological fluids interact of locking block and liquid intracavity portion to the realization is to the fixed of clamping part and unblock, has strengthened the grip function of product, prevents that the raw materials is not hard up in the course of working.

Preferably, the control block comprises a moving block body, an elastic contact piece and an electric contact, the diameter of the clamping part is smaller than that of the control groove, the friction resistance between the control block and the control groove is reduced, the control block can move in the control groove conveniently, the control block and the raw materials are squeezed mutually to overcome the elastic action of the two springs, the control block is in contact with the electric contact block, the electrification of the electrode column is controlled, and therefore the property of the electrorheological fluid in the liquid cavity is changed, and the electrorheological fluid is changed from a liquid state to a solid state.

Preferably, the electric contact block comprises an electric contact and a fixed block body, and the shapes of opposite surfaces of the electric contact block and the control block are matched, so that the control block is in close contact with the electric contact block conveniently, the electrification of the electrode column is controlled, the electrorheological fluid in the liquid cavity is changed from a liquid state to a solid state, the fixing effect on the clamping part is realized, and the loosening condition of the raw materials in the machining process is prevented.

Preferably, the electromagnet comprises a magnetic body, a surrounding coil and a control assembly, the direction of the magnetic field of the electromagnet is the same as that of the magnetic field of the permanent magnet, when the electromagnet is electrified, the electromagnet generates a magnetic field, the electromagnet and the permanent magnet are mutually acted through the magnetic field to drive the clamping part to overcome the elastic action of the first spring and the third spring to move, the raw materials are clamped, and the automatic clamping and fixing functions are realized.

Preferably, the interior of the liquid cavity is filled with electrorheological fluid which mainly comprises base liquid, solid particles and additives, when the electrode column is not electrified, the electrorheological fluid is in a liquid state, the clamping part can move relatively and realize a clamping function, when the electrode column is electrified, the electrorheological fluid is in a solid state, the clamping part is fixed, the clamping stability of the clamping part is enhanced, and the loosening of raw materials is prevented.

Preferably, the starting block is including removing the block and contacting the block, the diameter of starting block is less than the diameter of starting the groove, the surface of starting block is smooth, the frictional resistance between starting block and starting groove has been reduced, be convenient for start the removal of block in starting the groove, the frictional resistance between starting block and rotatory contact block has been reduced simultaneously, be convenient for start the relative slip between block and rotatory contact block, the rotatory contact of mobile control rotation contact block through starting the block, thereby switch-on clamping system's internal circuit, realize the clamping function of product.

Preferably, the rotary contact block is made of a conductive material and comprises a contact block body and an electric contact, and when the rotary contact blocks are in mutual contact, an internal circuit of the clamping system is switched on, so that the clamping part works and clamps the raw materials, and the automatic control function of the product is realized.

(III) advantageous effects

Compared with the prior art, the invention provides the numerical control milling machine which utilizes the electrorheological fluid to automatically clamp and fix, and the numerical control milling machine has the following beneficial effects:

1. this utilize automatic fixed numerically controlled fraise machine of centre gripping of electrorheological fluid, through the interact of electro-magnet and permanent magnet, drive clamping part and overcome spring one and move with the spring action of spring three to carrying out the centre gripping to adding the raw materials, rethread electric pole mutually supports with the inside electrorheological fluid of liquid chamber, and when the centre gripping was accomplished, the electrode post circular telegram made the electrorheological fluid become the solid, thereby restriction clamping part's removal has strengthened the centre gripping stability of product, has prevented that the raw materials from appearing not hard up the condition when adding man-hour.

2. This utilize automatic fixed numerically controlled fraise machine of centre gripping of electrorheological fluids, through the mutually supporting of starting block and rotating contact block, when the raw materials was placed with the standing groove is inside, make rotating contact block contact each other, switch on the internal circuit of clamping system, through the mutually supporting of control block and electric contact block simultaneously, when the centre gripping was accomplished, control block and electric contact block contact, switch on electrode post internal circuit, the control liquid intracavity electrorheological fluids become solid-state by liquid, had realized the automatic control function of product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion B of FIG. 1 according to the present invention;

FIG. 4 is a bottom view of the starting block structure of the present invention.

In the figure: 1. a rotating part; 2. a clamping groove; 3. a clamping portion; 4. a first spring; 5. a permanent magnet; 6. a control slot; 7. a second spring; 8. a control block; 9. an electrical contact; 10. a liquid chamber; 11. a telescopic column; 12. a third spring; 13. an electrode column; 14. an electromagnet; 15. a placement groove; 16. starting a groove; 17. a start block; 18. rotating the contact block; 19. and a fourth spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a numerically controlled milling machine using electrorheological fluid to automatically clamp and fix comprises a rotating part 1, wherein the rotating part 1 comprises a housing and a motor, the housing is made of a metal material, the thickness of the rotating part 1 is smaller than the length of a clamping member, the motor drives the rotating part 1 to rotate to realize the product milling function, so that a raw material is placed in a placing groove 15 and a milling end is exposed, thereby facilitating the clamping and processing of the product and the raw material, the rotating part 1 is internally provided with uniformly distributed clamping grooves 2, the clamping grooves 2 are internally and movably connected with a clamping part 3, the clamping part 3 is made of a metal material, the surface of the clamping part 3 is smooth, two sides of the clamping part 3 are respectively provided with a locking block, the locking blocks are sleeved in a liquid chamber 10, the locking blocks are internally provided with holes, the diameter of the holes is equal to the diameter of a telescopic column 11, and the electro, thereby realizing the fixation and the unlocking of the clamping part 3, enhancing the clamping function of the product and preventing the raw material from loosening in the processing process, the top of the clamping part 3 is fixedly connected with two symmetrical springs I4, the inner part of the clamping part 3 is fixedly connected with a permanent magnet 5, the inner side of the clamping part 3 is provided with a control groove 6, the inner side of the control groove 6 is fixedly connected with a spring II 7, the outer side of the spring II 7 is fixedly connected with a control block 8, the control block 8 comprises a movable block body, an elastic contact piece and an electric contact, the diameter of the clamping part 3 is smaller than that of the control groove 6, the frictional resistance between the control block 8 and the control groove 6 is reduced, the control block 8 can conveniently move in the control groove 6, the elastic action of the spring II 7 is overcome by the mutual extrusion of the control block 8 and the raw material, the control block 8 is contacted with the electric contact block 9, causing it to change from a liquid state to a solid state.

The electric contact block 9 is fixed in the control groove 6, the electric contact block 9 comprises an electric contact point and a fixed block body, the shape of the opposite surface of the electric contact block 9 is matched with that of the opposite surface of the control block 8, so that the control block 8 is in close contact with the electric contact block 9, the electrification of the electrode column 13 is controlled, the electrorheological fluid in the liquid cavity 10 is changed from liquid to solid, the fixing effect on the clamping part 3 is realized, the loosening of raw materials in the processing process is prevented, the liquid cavities 10 are formed in the two sides of the clamping groove 2, the interior of the liquid cavity 10 is filled with the electrorheological fluid which mainly comprises base fluid, solid particles and additives, when the electrode column 13 is not electrified, the electrorheological fluid is in a liquid state, the clamping part 3 can move relatively and realize the clamping function, when the electrode column 13 is electrified, the electrorheological fluid is in a solid state, the clamping part 3 is fixed, and the clamping stability of the clamping part 3 is enhanced, prevented not hard up of raw materials, the flexible post 11 of the inside fixedly connected with in liquid chamber 10, three 12 of the inside fixedly connected with spring in liquid chamber 10, the inside fixedly connected with electrode post 13 in liquid chamber 10, 2 outside fixedly connected with electro-magnets 14 in centre gripping groove, electro-magnets 14 include the magnetic flux body, encircle coil and control assembly, electro-magnets 14 is the same with the magnetic field direction of permanent magnet 5, when 14 circular telegrams of electro-magnets, electro-magnets 14 produce magnetic field, electro-magnets 14 and permanent magnet 5 pass through magnetic field interact, it removes to drive clamping part 3 to overcome the spring action of spring 4 and three 12, and carry out the centre gripping to the raw materials, the fixed function of automatic centre gripping has been realized.

The inside standing groove 15 that has seted up of rotating part 1, rotating part 1 is inside to have seted up start groove 16, the inside swing joint of start groove 16 has start block 17, start block 17 includes removal block and contact block, start block 17's diameter is less than start groove 16's diameter, start block 17's surface is smooth, the frictional resistance between start block 17 and start groove 16 has been reduced, be convenient for start block 17 to move in start groove 16, the frictional resistance between start block 17 and rotating contact block 18 has been reduced simultaneously, be convenient for start block 17 and rotating contact block 18 relative slip, rotating contact block 18 rotary contact is controlled through start block 17's removal, thereby put through the internal circuit of clamping system, realize the grip function of product, start block 17's back swing joint has two symmetrical rotating contact block 18, rotating contact block 18 is conductive material, rotating contact block 18 includes contact block and electrical contact, when the rotating contact blocks 18 are contacted with each other, the internal circuit of the clamping system is switched on, so that the clamping part 3 works and clamps the raw materials, the automatic control function of the product is realized, and the inner side of the rotating contact block 18 is fixedly connected with a spring four 19.

The working principle is as follows: when the product does not work, the electrode column 13 is powered off, the electrorheological fluid in the liquid cavity 10 is in a liquid state, the clamping part 3 can move relatively, the control block 8 is not in contact with the electric contact block 9, the rotary contact blocks 18 are not in contact with each other, when the raw material is placed in the placing groove 15, the raw material pushes the starting block 17, the starting block 17 drives the rotary contact blocks 18 to rotate, the rotary contact blocks 18 are in contact with each other, an internal circuit of the clamping system is connected, the electromagnet 14 is powered on at the moment, the electromagnet 14 generates a magnetic field and interacts with the permanent magnet 5, the clamping part 3 is driven to move against the elastic action of the first spring 4 and the third spring 12 and clamps the raw material, when the clamping is completed, the control block 8 is pressed into the control groove 6 and is in contact with the electric contact blocks 9, the electrode column 13 is controlled to be powered on, the electrorheological fluid in the liquid cavity 10 is converted into a solid state, and, the removal of clamping part 3 has been restricted, and then the stability of 3 centre gripping of clamping part has been strengthened, the condition that the raw materials appears becoming flexible in the course of working has been prevented and the automatic centre gripping fixed function of product has been realized, when processing is ended, press the reset button, the power failure of clamping system internal circuit, the inside electrorheological fluids of liquid chamber 10 becomes liquid by solid-state, clamping part 3 resets under the effect of spring 4 and spring three 12, thereby the centre gripping to the raw materials is relieved, the cyclic use of product has been realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an utilize automatic fixed numerically controlled fraise machine of centre gripping of electrorheological fluid, includes rotating part (1), its characterized in that: evenly distributed clamping grooves (2) are formed in the rotating part (1), a clamping part (3) is movably connected in the clamping groove (2), two symmetrical springs I (4) are fixedly connected to the top of the clamping part (3), a permanent magnet (5) is fixedly connected in the clamping part (3), a control groove (6) is formed in the inner side of the clamping part (3), a spring II (7) is fixedly connected to the inner side of the control groove (6), a control block (8) is fixedly connected to the outer side of the spring II (7), an electric contact block (9) is fixedly arranged in the control groove (6), liquid chambers (10) are formed in two sides of the clamping groove (2), telescopic columns (11) are fixedly connected in the liquid chambers (10), a spring III (12) is fixedly connected in the liquid chambers (10), electrode columns (13) are fixedly connected in the liquid chambers (10), and electromagnets (14) are fixedly connected to the outer sides of the clamping groove (2, standing groove (15) have been seted up to rotating part (1) inside, and starting groove (16) have been seted up to rotating part (1) inside, and the inside swing joint of starting groove (16) has starting block (17), and the back swing joint of starting block (17) has two symmetrical rotating contact blocks (18), and the inboard fixedly connected with spring four (19) of rotating contact block (18).

2. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the rotating part (1) comprises a shell and a motor, the shell is made of metal materials, and the thickness of the rotating part (1) is smaller than the length of the clamping piece.

3. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: clamping part (3) are metal material, and the surface of clamping part (3) is smooth, and the both sides of clamping part (3) all are provided with the locking block, and the locking block cup joints in the inside of liquid chamber (10), and the locking block is inside to be seted up porosely, and the diameter in hole equals the diameter of flexible post (11).

4. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the control block (8) comprises a moving block body, an elastic contact piece and an electric contact, and the diameter of the clamping part (3) is smaller than that of the control groove (6).

5. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the electric contact block (9) comprises an electric contact and a fixed block body, and the shapes of opposite surfaces of the electric contact block (9) and the control block (8) are matched.

6. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the electromagnet (14) comprises a magnetic body, a surrounding coil and a control assembly, and the directions of the magnetic fields of the electromagnet (14) and the permanent magnet (5) are the same.

7. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the interior of the liquid cavity (10) is filled with electrorheological fluid which mainly comprises base liquid, solid particles and additives.

8. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the starting block (17) comprises a moving block body and a contact block body, the diameter of the starting block (17) is smaller than that of the starting groove (16), and the surface of the starting block (17) is smooth.

9. The numerical control milling machine for automatic clamping and fixing by utilizing the electrorheological fluid according to claim 1, characterized in that: the rotary contact block (18) is made of conductive materials, and the rotary contact block (18) comprises a contact block body and an electric contact.